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Darwin, C. R. in correspondent 
Zincke, F. B. in correspondent 
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From:
Foster Barham Zincke
To:
Charles Robert Darwin
Date:
1 Nov 1881
Source of text:
DAR 184: 12
Summary:

Has found prehistoric tools in his orchard that he believes have been buried by the action of earthworms.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Foster Barham Zincke
Date:
3 Nov 1881
Source of text:
American Philosophical Society (Mss.B.D25.)
Summary:

CD thinks the celts [prehistoric tools] on the pan could not have been buried wholly by worms.

As for large size of Arctic mammals, CD suggests it is an advantage in retaining warmth.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Foster Barham Zincke
Date:
7 Nov 1881
Source of text:
Cleveland Health Sciences Library (Robert M. Stecher collection)
Summary:

Would like to cite the case of the celt in a new printing of Earthworms. Asks for details.

Contributor:
Darwin Correspondence Project
From:
Foster Barham Zincke
To:
Charles Robert Darwin
Date:
8 Nov 1881
Source of text:
DAR 184: 13
Summary:

Describes the soil in which he found prehistoric tools.

Contributor:
Darwin Correspondence Project
From:
Foster Barham Zincke
To:
Charles Robert Darwin
Date:
8 Dec 1881
Source of text:
DAR 184: 14
Summary:

Thanks CD for copy of Earthworms.

Contributor:
Darwin Correspondence Project